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Application filed by Electroputere Craiova JudetulfiledCriticalElectroputere Craiova Judetul
Priority to RO132293ApriorityCriticalpatent/RO100083A2/en
Publication of RO100083B1publicationCriticalpatent/RO100083B1/en
Publication of RO100083A2publicationCriticalpatent/RO100083A2/en
Details Of Spanners, Wrenches, And Screw Drivers And Accessories
(AREA)
Abstract
The invention concerns an air-operated device used to screw nuts and screws.According to the invention, the device includes an air-operated cylinder in which a piston with a rod oscillates under the compressed air, as well as an elastic system consisting of some springs placed on both sides of the piston, which stimulates into a reciprocal motion a slideblock provided with ratchet pushed by a spring that activates a ratchet wheel provided with a hole for screws or nuts.
RO132293A1988-02-221988-02-22Pneumatic device for tightening screws
RO100083A2
(en)